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arXiv 2108.09310hep-thmath.DG
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拓扑G $_{2}$和双复形1-圈处的Spin(7)弦

Topological G$_{2}$ and Spin(7) strings at 1-loop from double complexes

Anthony Ashmore, André Coimbra, Charles Strickland-Constable, Eirik Eik Svanes, David Tennyson

摘要:

我们研究了拓扑$G_2$和$Spin(7)$弦在1-loop上的性质.我们定义了新的双复合物的超对称NSNS背景的弦论使用广义几何。然后,1-循环配分函数具有作为拉普拉斯行列式的特定交替乘积的目标空间解释,我们称之为解析挠率。在没有通量的情况下,这些背景具有特殊的holonomy,我们重现的世界表计算的$G_2$字符串,并给出一个新的预测的$Spin(7)$字符串。我们还评论的连接与拓扑弦上的Calabi-Yau和K3背景。

英文摘要:

We study the topological $G_2$ and $Spin(7)$ strings at 1-loop. We define new double complexes for supersymmetric NSNS backgrounds of string theory using generalised geometry. The 1-loop partition function then has a target-space interpretation as a particular alternating product of determinants of Laplacians, which we have dubbed the analytic torsion. In the case without flux where these backgrounds have special holonomy, we reproduce the worldsheet calculation of the $G_2$ string and give a new prediction for the $Spin(7)$ string. We also comment on connections with topological strings on Calabi-Yau and K3 backgrounds.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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